Tomorrow, December 12, will present two opportunities to observe a sequential, repetitive, convergence of dates and times.

12/12/12 12:12

This will be the last time this century this will occur. It will not be until January 1, 2101 that this will happen again. Since this will be the last time that all but the very youngest of us will see this, make note of what you are doing at either 12:12 A.M. (probably sleeping) or 12:12 P.M.